Simple minimalist lines, heavy gauged string, copper rivets, solid buckles and our rugged 10 oz. hide makes our classic satchel, the No. 4313. My goal with the No. 4313 was to create the strongest satchel on the market with as little excess as possible. This feels more like a standard-sized briefcase ideal for a 15" MacBook Pro with a sheath and a few inches of files, books or magazines. Optional monogramming available.